Test tube retaining and labeling unit



FIG. 1 is a top plan view of a test tube retaining and labeling unit showing my new design. The figure includes on one side a test tube retained longitudinally and on the other side a test tube retained vertically;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front-side cross-sectional view taken along line 5—5 shown in FIG. 1 thereof;

FIG. 6 is a left-side cross-sectional view taken along line 6—6 shown in FIG. 3 thereof; and,

FIG. 7 is a right side cross-sectional view taken along line 7—7 shown in FIG. 4 thereof.

The broken line showing of test tube is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a test tube retaining and labeling unit, as shown and described. 